Please assist with demo about otpfieldview HOT 4 CLOSED

@IBOutlet weak var otpTextFieldView: OTPFieldView!

func setupOtpView() {
           self.otpTextFieldView.fieldsCount = 5
           self.otpTextFieldView.fieldBorderWidth = 2
           self.otpTextFieldView.defaultBorderColor = UIColor.black
           self.otpTextFieldView.filledBorderColor = UIColor.green
           self.otpTextFieldView.cursorColor = UIColor.red
           self.otpTextFieldView.displayType = .underlinedBottom
           self.otpTextFieldView.fieldSize = 40
           self.otpTextFieldView.separatorSpace = 8
           self.otpTextFieldView.shouldAllowIntermediateEditing = false
           self.otpTextFieldView.otpInputType = .numeric
           self.otpTextFieldView.delegate = self
          self.otpTextFieldView.initializeUI()

       }

@IBAction func completeOTPBtn(_ sender: Any) {
    let storyBoard: UIStoryboard = UIStoryboard(name: "Login", bundle: nil)
    let PermissionNotifyViewController = storyBoard.instantiateViewController(withIdentifier: "PermissionNotify") as! PermissionNotifyViewController
    self.present(PermissionNotifyViewController, animated: true, completion: nil)

}
override func viewDidLoad() {
    super.viewDidLoad()

    // Do any additional setup after loading the view.

}

enum DisplayType: Int {
    case circular
    case roundedCorner
    case square
    case diamond
    case underlinedBottom

extension OTPViewController: OTPFieldViewDelegate {
    func hasEnteredAllOTP(hasEnteredAll hasEntered: Bool) -> Bool {
        print("Has entered all OTP? \(hasEntered)")
        return false
    }

    func shouldBecomeFirstResponderForOTP(otpTextFieldIndex index: Int) -> Bool {
        return true
    }

    func enteredOTP(otp otpString: String) {
        print("OTPString: \(otpString)")
    }
}

// In a storyboard-based application, you will often want to do a little preparation before navigation
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
    // Get the new view controller using segue.destination.
   // Pass the selected object to the new view controller.

override func viewDidLoad() {
    super.viewDidLoad()

    // You forgot to add this.
    self.setupOtpView()
}